ABB RELION 670 Series Product Manual page 115

Transformer protection RET670 2.1 IEC
Hardware
IED
Table 146. Case
Material
Front plate
Surface treatment
Finish
Table 147. Water and dust protection level according to IEC 60529
Front
Sides, top and bottom
Rear side
Table 148. Weight
Case size
6U, 1/2 x 19"
6U, 3/4 x 19"
6U, 1/1 x 19"
Electrical safety
Table 149. Electrical safety according to IEC 60255-27
Equipment class
Overvoltage category
Pollution degree
Connection system
Table 150. CT and VT circuit connectors
Connector type
Screw compression type
Terminal blocks suitable for ring lug terminals
Table 151. Auxiliary power supply and binary I/O connectors
Connector type
Screw compression type
Terminal blocks suitable for ring lug terminals
ABB
Steel sheet
Steel sheet profile with cut-out for HMI
Aluzink preplated steel
Light grey (RAL 7035)
IP40 (IP54 with sealing strip)
IP20
IP20 with screw compression type
IP10 with ring lug terminals
GUID-1CF5B10A-CF8B-407D-8D87-F4B48B43C2B2 v1
I (protective earthed)
III
2 (normally only non-conductive pollution occurs except that occasionally a temporary conductivity caused by
condensation is to be expected)
M11778-1 v4
M12327-1 v3
M11777-1 v4
Weight
£ 10 kg/22 lb
£ 15 kg/33 lb
£ 18 kg/40 lb
SEMOD53376-2 v6
Rated voltage and current
250 V AC, 20 A
250 V AC, 20 A
M12583-1 v5
Rated voltage
250 V AC
300 V AC
1MRK 504 155-BEN F
SEMOD53385-1 v1
GUID-2825B541-DD31-4DAF-B5B3-97555F81A1C2 v1
SEMOD53371-1 v1
Maximum conductor area
2
4 mm (AWG12)
2
2 x 2.5 mm (2 x AWG14)
2
4 mm (AWG12)
Maximum conductor area
2
2.5 mm (AWG14)
2
2 × 1 mm (2 x AWG18)
2
3 mm (AWG14)
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